US6385192B1 - Method and apparatus for DTMF signaling on compressed voice networks - Google Patents

Method and apparatus for DTMF signaling on compressed voice networks Download PDF

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Publication number
US6385192B1
US6385192B1 US09/047,301 US4730198A US6385192B1 US 6385192 B1 US6385192 B1 US 6385192B1 US 4730198 A US4730198 A US 4730198A US 6385192 B1 US6385192 B1 US 6385192B1
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United States
Prior art keywords
dtmf
signals
telephone
compressed
dtmf signal
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Expired - Lifetime
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US09/047,301
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English (en)
Inventor
Peter Kozdon
Eli Jacobi
Shmuel Shaffer
William J. Beyda
Leroy E. Gilbert
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Enterprise Systems Technologies SARL
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Siemens Information and Communication Networks Inc
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Priority to US09/047,301 priority Critical patent/US6385192B1/en
Assigned to SIEMENS BUSINESS COMMUNICATIONS SYSTEMS, INC. reassignment SIEMENS BUSINESS COMMUNICATIONS SYSTEMS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BEYDA, WILLIAM J., JACOBI, ELI, KOZDON, PETER, SHAFFER, SHMUEL, GILBERT, LEROY E.
Priority to IL12858899A priority patent/IL128588A0/xx
Priority to EP99103490A priority patent/EP0946034A3/fr
Priority to US09/734,790 priority patent/US6456618B2/en
Assigned to SIEMENS INFORMATION AND COMMUNICATION NETWORKS, INC. reassignment SIEMENS INFORMATION AND COMMUNICATION NETWORKS, INC. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: SIEMENS BUSINESS COMMUNICATION SYSTEMS, INC.
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Publication of US6385192B1 publication Critical patent/US6385192B1/en
Assigned to SIEMENS COMMUNICATIONS, INC. reassignment SIEMENS COMMUNICATIONS, INC. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: SIEMENS INFORMATION AND COMMUNICATION NETWORKS, INC.
Assigned to SIEMENS ENTERPRISE COMMUNICATIONS, INC. reassignment SIEMENS ENTERPRISE COMMUNICATIONS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SIEMENS COMMUNICATIONS, INC.
Assigned to WELLS FARGO TRUST CORPORATION LIMITED, AS SECURITY AGENT reassignment WELLS FARGO TRUST CORPORATION LIMITED, AS SECURITY AGENT GRANT OF SECURITY INTEREST IN U.S. PATENTS Assignors: SIEMENS ENTERPRISE COMMUNICATIONS, INC.
Assigned to ENTERPRISE TECHNOLOGIES S.A.R.L. reassignment ENTERPRISE TECHNOLOGIES S.A.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SIEMENS ENTERPRISE COMMUNICATIONS GMBH & CO. KG, SIEMENS ENTERPRISE COMMUNICATIONS, INC.
Assigned to ENTERPRISE SYSTEMS TECHNOLOGIES S.A.R.L. reassignment ENTERPRISE SYSTEMS TECHNOLOGIES S.A.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ENTERPRISE TECHNOLOGIES S.A.R.L.
Assigned to SIEMENS ENTERPRISE COMMUNICATIONS INC. reassignment SIEMENS ENTERPRISE COMMUNICATIONS INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: WELLS FARGO TRUST CORPORATION LIMITED
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/0016Arrangements providing connection between exchanges
    • H04Q3/0025Provisions for signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/64Hybrid switching systems
    • H04L12/6418Hybrid transport
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40Network security protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/64Hybrid switching systems
    • H04L12/6418Hybrid transport
    • H04L2012/6443Network Node Interface, e.g. Routing, Path finding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/64Hybrid switching systems
    • H04L12/6418Hybrid transport
    • H04L2012/6472Internet
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/64Hybrid switching systems
    • H04L12/6418Hybrid transport
    • H04L2012/6481Speech, voice
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/64Hybrid switching systems
    • H04L12/6418Hybrid transport
    • H04L2012/6486Signalling Protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • H04M7/12Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
    • H04M7/1205Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
    • H04M7/1295Details of dual tone multiple frequency signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13034A/D conversion, code compression/expansion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13093Personal computer, PC
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13174Data transmission, file transfer
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13176Common channel signaling, CCS7
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13196Connection circuit/link/trunk/junction, bridge, router, gateway
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13204Protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1322PBX
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13377Recorded announcement
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13389LAN, internet
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13396Signaling in general, in-band signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13405Dual frequency signaling, DTMF
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S379/00Telephonic communications
    • Y10S379/90Internet, e.g. Internet phone, webphone, internet-based telephony

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
US09/047,301 1998-03-24 1998-03-24 Method and apparatus for DTMF signaling on compressed voice networks Expired - Lifetime US6385192B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US09/047,301 US6385192B1 (en) 1998-03-24 1998-03-24 Method and apparatus for DTMF signaling on compressed voice networks
IL12858899A IL128588A0 (en) 1998-03-24 1999-02-18 Apparatus and method for dtmf signaling on compressed voice networks
EP99103490A EP0946034A3 (fr) 1998-03-24 1999-02-23 Procédé et dispositif pour signalisation DTMF dans des réseaux à compression vocale
US09/734,790 US6456618B2 (en) 1998-03-24 2000-12-11 Method and apparatus for DTMF signaling on compressed voice networks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/047,301 US6385192B1 (en) 1998-03-24 1998-03-24 Method and apparatus for DTMF signaling on compressed voice networks

Related Child Applications (1)

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US09/734,790 Continuation US6456618B2 (en) 1998-03-24 2000-12-11 Method and apparatus for DTMF signaling on compressed voice networks

Publications (1)

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US6385192B1 true US6385192B1 (en) 2002-05-07

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US09/734,790 Expired - Lifetime US6456618B2 (en) 1998-03-24 2000-12-11 Method and apparatus for DTMF signaling on compressed voice networks

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US09/734,790 Expired - Lifetime US6456618B2 (en) 1998-03-24 2000-12-11 Method and apparatus for DTMF signaling on compressed voice networks

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US (2) US6385192B1 (fr)
EP (1) EP0946034A3 (fr)
IL (1) IL128588A0 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020041591A1 (en) * 1998-07-31 2002-04-11 Hluchyj Michael G. Apparatus and method for a telephony gateway
US20020101887A1 (en) * 2000-12-06 2002-08-01 Alcatel Versatile network termination unit and line interface
US20030056213A1 (en) * 2001-05-16 2003-03-20 Mcfaddin James E. Method and system for delivering a composite information stream over a computer network
US6778555B1 (en) * 1999-05-28 2004-08-17 Cisco Technology, Inc. Voice over packet system configured to connect different facsimile transmission protocols
US7039044B1 (en) * 1999-10-14 2006-05-02 Mindspeed Technologies, Inc. Method and apparatus for early detection of DTMF signals in voice transmissions over an IP network
US7110391B1 (en) * 2000-03-03 2006-09-19 Nortel Networks Limited Transporting telephony signaling over a data network
US7120140B1 (en) * 1999-02-26 2006-10-10 Intel Corporation Digital browser phone
US20070041771A1 (en) * 2005-08-22 2007-02-22 Creative Technology Ltd. Keyboard with extended connection
US20080192623A1 (en) * 2007-02-09 2008-08-14 Mediatek Inc. Methods and devices for dual-tone multi-frequency (dtmf) signaling
US20110090796A1 (en) * 1999-12-30 2011-04-21 Avaya Inc. ADAPTIVELY MAINTAINING QUALITY OF SERVICE (QoS) IN DISTRIBUTED PBX NETWORKS
US7990882B1 (en) 1999-12-30 2011-08-02 Avaya Inc. Adaptively maintaining quality of service (QoS) in distributed PBX networks

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6259691B1 (en) 1998-07-24 2001-07-10 3Com Corporation System and method for efficiently transporting dual-tone multi-frequency/multiple frequency (DTMF/MF) tones in a telephone connection on a network-based telephone system
WO2000047007A1 (fr) * 1999-02-04 2000-08-10 Nokia Networks Oy Suppression de la detection de tonalite
EP1411700B8 (fr) * 1999-08-06 2006-08-30 Matsushita Electric Industrial Co., Ltd. Procédé et appareil d'émission de données et appareil de réception de données
US6392999B1 (en) * 1999-08-10 2002-05-21 Lucent Technologies Inc. Conferencing and announcement generation for wireless VoIP and VoATM calls
US20030002651A1 (en) * 2000-12-29 2003-01-02 Shires Glen E. Data integration with interactive voice response systems
US7304985B2 (en) * 2001-09-24 2007-12-04 Marvin L Sojka Multimedia communication management system with line status notification for key switch emulation
US7245611B2 (en) * 2002-02-27 2007-07-17 J2 Global Communications Method and process for signaling, communication and administration of networked objects
US20030194082A1 (en) 2002-04-15 2003-10-16 Eli Shoval Method and apparatus for transmitting signaling tones over a packet switched network
DE60231384D1 (de) * 2002-07-05 2009-04-16 Hewlett Packard Co Verbesserungen für DTMF Signalisierung
US8289956B2 (en) 2002-08-06 2012-10-16 Intel Corporation Communicating tone information in a network
AU2003274544A1 (en) * 2002-11-12 2004-06-03 Warner-Lambert Company Llc Mkk7gamma1 nucleic acids and polypeptides
US7417981B2 (en) 2003-10-15 2008-08-26 Vonage Holdings Corp. Method and apparatus for enhanced Internet Telephony
US7386111B2 (en) 2004-02-10 2008-06-10 Vonage Network Inc. Method and apparatus for placing a long distance call based on a virtual phone number
US20050250821A1 (en) * 2004-04-16 2005-11-10 Vincent Sewalt Quaternary ammonium compounds in the treatment of water and as antimicrobial wash
US8683044B2 (en) 2005-03-16 2014-03-25 Vonage Network Llc Third party call control application program interface
US20060210036A1 (en) 2005-03-16 2006-09-21 Jeffrey Citron System for effecting a telephone call over a computer network without alphanumeric keypad operation
CA2633363A1 (fr) 2005-11-09 2007-05-08 Vonage Holdings Corp. Procede et systeme d'identification d'appelant personnalisee
US8917717B2 (en) 2007-02-13 2014-12-23 Vonage Network Llc Method and system for multi-modal communications
EP1989823B1 (fr) 2006-02-27 2012-11-07 Vonage Network LLC Procede et systeme pour transfert bidirectionnel de donnees
ITMI20071859A1 (it) * 2007-09-27 2009-03-28 Phonetica S R L Metodo e apparato per il decentramento di postazioni d'operatore di centralini telefonici attraverso reti di tipo ip.
DE102007061312A1 (de) * 2007-12-19 2009-06-25 Siemens Aktiengesellschaft Verfahren und Empfangseinrichtung zum Synchronisieren eines paketorientiert empfangenen mit einem gebildeten Tonsignal

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5633862A (en) * 1993-10-29 1997-05-27 Hitachi Denshi Kabushiki Kaisha DTMF signal transmission method in single frequency simultaneous transmitting and receiving system and single frequency simultaneous transmitting and receiving system transceiver capable of transmitting DTMF signal
US5666357A (en) * 1995-03-23 1997-09-09 Hughes Electronics DTMF tone passer in a voice communication system
US5889774A (en) * 1997-03-14 1999-03-30 Efusion, Inc. Method and apparatus for selecting an internet/PSTN changeover server for a packet based phone call
US5940479A (en) * 1996-10-01 1999-08-17 Northern Telecom Limited System and method for transmitting aural information between a computer and telephone equipment
US6038534A (en) * 1997-09-11 2000-03-14 Cowboy Software, Inc. Mimicking voice commands as keyboard signals
US6169734B1 (en) * 1996-12-31 2001-01-02 Mci Communications Corporation Internet phone set

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5280625A (en) * 1992-06-26 1994-01-18 Hughes Aircraft Company Communication system and method for linking data terminals and their host computers through a satellite or other wide area network
JPH08307366A (ja) * 1995-05-02 1996-11-22 Japan Radio Co Ltd 音声符号化装置
JP3343002B2 (ja) * 1995-09-08 2002-11-11 松下電器産業株式会社 音声帯域情報伝送装置
US6006108A (en) * 1996-01-31 1999-12-21 Qualcomm Incorporated Digital audio processing in a dual-mode telephone
US5761280A (en) * 1996-09-04 1998-06-02 8×8, Inc. Telephone web browser arrangement and method
US6310873B1 (en) * 1997-01-09 2001-10-30 International Business Machines Corporation Internet telephony directory server
JPH1155396A (ja) * 1997-08-01 1999-02-26 Nippon Columbia Co Ltd 通話記録装置及び通話再生装置
US6072864A (en) * 1997-12-01 2000-06-06 Genesys Telecommunication Laboratories, Inc. Transfer-connect telephony services utilizing automated audio systems

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5633862A (en) * 1993-10-29 1997-05-27 Hitachi Denshi Kabushiki Kaisha DTMF signal transmission method in single frequency simultaneous transmitting and receiving system and single frequency simultaneous transmitting and receiving system transceiver capable of transmitting DTMF signal
US5666357A (en) * 1995-03-23 1997-09-09 Hughes Electronics DTMF tone passer in a voice communication system
US5940479A (en) * 1996-10-01 1999-08-17 Northern Telecom Limited System and method for transmitting aural information between a computer and telephone equipment
US6169734B1 (en) * 1996-12-31 2001-01-02 Mci Communications Corporation Internet phone set
US5889774A (en) * 1997-03-14 1999-03-30 Efusion, Inc. Method and apparatus for selecting an internet/PSTN changeover server for a packet based phone call
US6038534A (en) * 1997-09-11 2000-03-14 Cowboy Software, Inc. Mimicking voice commands as keyboard signals

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020041591A1 (en) * 1998-07-31 2002-04-11 Hluchyj Michael G. Apparatus and method for a telephony gateway
US7417977B2 (en) * 1998-07-31 2008-08-26 Sonus Networks, Inc. Apparatus and method for a telephony gateway
US7120140B1 (en) * 1999-02-26 2006-10-10 Intel Corporation Digital browser phone
US20080219240A1 (en) * 1999-02-26 2008-09-11 Intel Corporation Digital browser phone
US6778555B1 (en) * 1999-05-28 2004-08-17 Cisco Technology, Inc. Voice over packet system configured to connect different facsimile transmission protocols
US7039044B1 (en) * 1999-10-14 2006-05-02 Mindspeed Technologies, Inc. Method and apparatus for early detection of DTMF signals in voice transmissions over an IP network
US20110090796A1 (en) * 1999-12-30 2011-04-21 Avaya Inc. ADAPTIVELY MAINTAINING QUALITY OF SERVICE (QoS) IN DISTRIBUTED PBX NETWORKS
US7990882B1 (en) 1999-12-30 2011-08-02 Avaya Inc. Adaptively maintaining quality of service (QoS) in distributed PBX networks
US8477602B2 (en) 1999-12-30 2013-07-02 Avaya Inc. Adaptively maintaining quality of service (QoS) in distributed PBX networks
US7110391B1 (en) * 2000-03-03 2006-09-19 Nortel Networks Limited Transporting telephony signaling over a data network
US20020101887A1 (en) * 2000-12-06 2002-08-01 Alcatel Versatile network termination unit and line interface
US20030056213A1 (en) * 2001-05-16 2003-03-20 Mcfaddin James E. Method and system for delivering a composite information stream over a computer network
US20070041771A1 (en) * 2005-08-22 2007-02-22 Creative Technology Ltd. Keyboard with extended connection
US20080192623A1 (en) * 2007-02-09 2008-08-14 Mediatek Inc. Methods and devices for dual-tone multi-frequency (dtmf) signaling

Also Published As

Publication number Publication date
EP0946034A3 (fr) 2002-11-13
EP0946034A2 (fr) 1999-09-29
US20010012305A1 (en) 2001-08-09
IL128588A0 (en) 2000-01-31
US6456618B2 (en) 2002-09-24

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